1
2
3
4
5
6
7
8
9
1
2
3
4
found 5
6
7
8
9
outer loop #1
    inner loop #1
    inner loop #2
    inner loop #3
outer loop #2
    inner loop #1
    inner loop #2
    inner loop #3
outer loop #3
    inner loop #1
    inner loop #2
    inner loop #3
1 1
1 2
2 3
3 5
5 8
8 13
